Tuck-folder for sewing-machines.



No. 859,952. PATENTED JULY 16, 1907 A. LAUBSGHER.

TUGK FOLDER FOR SEWING MACHINES.

' APPLICATION FILED APR.4, 1906.

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UNITED STATES PATENT OFFICE.

MENTS, JERSEY.

TO THE SINGER MANUFACTURING COMPANY, A CORPORATION OF NEW TUCK-FOLDERFOR SEWING-MACHINES.

Specification of Letters Patent.

Patented July 1e,19o7.

Application filed April 4, 1906. Serial N0. 309,780-

To all whom it may concern:

Be it known that I, ALEXANDER LAUBSCHER, a citizen of the United States,and a resident of Bridgeport,

in the county of Fairfield and State of Connecticut,

' oi the tuck-guide 12 in the base is reversed from that have invented acertain new and useful Improvement in Tuck-Folders for Sewing-Machines,of which the following is a specification.

This invention relates to improvements in tuck folding guides for sewingmachines, and has for its object to provide a guide simple inconstruction, convenient of adjustment and equally effective for guidingthe material for the laying of comparatively wide tucks, or for, what istermed, pin tucks, which latter consist of exceptionally narrow folds,insome instances not wider than three or four times the thickness of thematerial being tucked; and to this end I provide the tuck folding guidewith an adjustably and reversibly secured tuck-guide which is providedat its opposite ends with unlike guide flanges, either of which may beused,

dependent upon the desired production.

Referring to the drawings, Figure 1 is a plan view 0 my improved tuckfolding device, together with so much of the bed-plate of the sewingmachine as is necessary to show its application, Fig. 2 a view inperspective of my improved device, Fig. 3 a detail of the tuckguide andFig. 4 a view illustrating the production commonly termed pin tucking.

. 1 is the bed-plate of the sewing machine, 2 the back 1 slide-plate, 3the back slide-plate screw, 4 front slideplate and 5 cloth-presser,shown in section through the upwardlyextended portion 6, which latter isusually attachedbya suitable screw to the commonly employed presser-bar,not shown.

7 is the clothresser extension, 8 the needle-hole, 9

3 5 the tuck-folder base-plate, 10 gage-finger, 11 tuck-folder platescrew, 12 adjustable tuck-guide provided with a slot 12, 13tucking-guide (large), 14. tucking-guide (small), 15 tuck-guide screw,16 adjustable fold-guide, 17 fold-guide screw, and 18 aforrn ofproduction wherein the tuck-folds are of medium width.

In the practical application of my device, the first fold or tuck 19 islaid and creased by hand, as is common in connection with the use oftuck-folders generally, and the first seam 20 is formed by the operatorguiding the folded edge 21 against the fold-guide 16, thus forming thefirst tuck 19. After 'the first tuck has been formed the material ispositioned in the tuckfolder, as shown in Fig. 1, with the folded edge21 of the tuck 19 in the tucking guide 13 and the folded edge 22 of thetuck 23 guided against the fold-guide 16. The third tuck is formed inlike manner to the second, by

guiding the folded edge 25 against the fold-guide 16, the folded edge 22of the tuck 23 being guided by the tucking-guide 13. If it is desired toeffect pin tucking, such as is illustrated by the tucks 26, Fig. 4, theposition 5 5 shown in Figs. 1 and 2 and the tucking-guide 14 is employed to guide the folded edge instead of the tuckingguide 13.

In the practical operation of a tuck-folder calculated to meet therequirements of the formation of both pin tucks and tucks of ordinarywidth, it has been found that the form of tucking-guide suitable for thelatter is not desirable in connection with the formation of extremelynarrow or pin tucks; and one importantreason for this is that pintucking is used mostly in connection with materials of very finetexture, such as chiffon, mull, China silk, organdy and other materialswhich are difficult to guide between the tucking and foldingguide.Further, the difiiculty of properly holding and guiding such materialsis greatly increased when it is desired to form such pin tucks inclusters, (see Fig. 4), as the distance between the last tuck of thecluster and the fold of the first tuck of the succeeding cluster makesit very difficult to properly guide materials of delicate texture,unless the depth of the tucking-guide is substantially that of the widthof the pin tuck.

Claims:-

1. In a tuck-folding guide for sewing machines, a stationary base-platemounted upon the cloth-plate of the sewing machine and provided with agraduated finger, a reversibly mounted tuck-guide adjustably securedupon said base-plate and provided at its opposite ends withtucking-guides of unlike proportions, for the purpose described, incombination with a fold-guide adjustably and independently mounted onsaid stationary base-plate and coacting with said finger to gage thewidth of the tucks, and with said tuck-guide to gage the space betweenthe tucks, substantially as described.

2. In a tuck-folding guide for sewing machines, a stationary base-platemounted upon the clothplate of the sewing machine and provided with agraduated finger, a reversibly mounted tuck-guide secured upon saidbaseplate and provided with tucking-guides of 'unlike pro- 7 portions,for the purpose described, said graduated finger being located betweensaid tuck-guide and the path of vertical movement of the needle, incombination with a fold-guide adjustably and independently mounted onsaid stationary base-plate and coacting with said finger to gage thewidth of the tucks, and with said tuck-guide to gage the space betweenthe tucks, substantially as described.

, Signed at Bridgeport, in the county of Fairfield, and State ofConnecticut, this 3d day of April, A. D. 1906.

ALEXANDER LAUBSCHER.

Witnesses A. Bowman, G. W. RUFFELS.

